Test failure: System.Security.Cryptography.X509Certificates.Tests

[BruceForstall]

Crash running System.Security.Cryptography.X509Certificates.Tests:

https://dev.azure.com/dnceng/public/_build/results?buildId=736792&view=ms.vss-test-web.build-test-results-tab&runId=22820272&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab&resultId=173683

Configurations:
net5.0-Linux-Release-arm-CoreCLR_checked-jitstress2_jitstressregs3
net5.0-Linux-Release-arm-CoreCLR_checked-jitstress2_jitstressregs4 ; This fails with a GC assert (#39672) instead of crash. Related?
net5.0-Linux-Release-arm-CoreCLR_checked-jitstress2_jitstressregs8

Others fail with crash:

COMPlus_TieredCompilation=0
COMPlus_JitStress=2
COMPlus_DbgMiniDumpName=/home/helixbot/dotnetbuild/dumps/coredump.%d.dmp
COMPlus_JitStressRegs=3
COMPlus_DbgEnableMiniDump=1
+ ./RunTests.sh --runtime-path /root/helix/work/correlation
----- start Sat Jul 18 10:25:08 UTC 2020 =============== To repro directly: =====================================================
pushd .
/root/helix/work/correlation/dotnet exec --runtimeconfig System.Security.Cryptography.X509Certificates.Tests.runtimeconfig.json --depsfile System.Security.Cryptography.X509Certificates.Tests.deps.json xunit.console.dll System.Security.Cryptography.X509Certificates.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing 
popd
===========================================================================================================
/root/helix/work/workitem /root/helix/work/workitem
  Discovering: System.Security.Cryptography.X509Certificates.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Security.Cryptography.X509Certificates.Tests (found 561 of 638 test cases)
  Starting:    System.Security.Cryptography.X509Certificates.Tests (parallel test collections = on, max threads = 4)
Writing minidump to file /home/helixbot/dotnetbuild/dumps/coredump.26.dmp
Process 26 dotnet
Written 193126400 bytes (47150 pages) to core file
Dump successfully written
./RunTests.sh: line 161:    26 Bus error               "$RUNTIME_PATH/dotnet" exec --runtimeconfig System.Security.Cryptography.X509Certificates.Tests.runtimeconfig.json --depsfile System.Security.Cryptography.X509Certificates.Tests.deps.json xunit.console.dll System.Security.Cryptography.X509Certificates.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing $RSP_FILE
/root/helix/work/workitem
----- end Sat Jul 18 10:26:08 UTC 2020 ----- exit code 135 ----------------------------------------------------------

category:correctness
theme:testing
skill-level:intermediate
cost:medium

[AndyAyersMS]

I'll investigate.

[AndyAyersMS]

I can't repro any of these failures. Will close.